A kind of asphalt extensibility measuring instrument and using method thereof

Abstract

The invention discloses an asphalt extensibility tester and a using method thereof, and relates to the technical field of road material performance testing, which comprises a pool body, a partition plate slidably connected inside the pool body, and a sliding block arranged on one side of the partition plate , the test mold inserted on the sliding block and the partition plate and the driving device arranged on the other side of the partition board, the partition board is perpendicular to the bottom end of the pool body, the driving device includes fan blades, driving fan The driving part for leaf rotation and the linkage part for driving the partition plate to move. While the partition plate is moving, the driving part drives the fan blades to rotate, and stirs the water area on the side where the partition plate is connected to the test mold, so that the high and low temperature water on this side is fully mixed, reducing the occurrence of uneven water temperature. It is installed in the pool body The heating tube on the side can slow down the appearance of yin and yang water, and the partition plate separates the water areas on both sides of the partition plate to prevent the test results from being affected by the stirring of the fan blades.

Description

technical field [0001] The invention relates to the technical field of road material performance testing, in particular to an asphalt extensibility tester and a method for using the same. Background technique [0002] Asphalt is a widely used pavement structure cementing material in road engineering, and the ductility of asphalt is an important index to evaluate the plasticity of asphalt. The ductility is generally measured with an asphalt ductility tester. Usually, when the temperature is 25°C, 15°C, 10°C, and 5°C, the asphalt sample is stretched at a speed of 5 cm per minute (1 cm per minute when the temperature is low). Fracture, the length (cm) at the time of fracture is used as the ductility of the asphalt. The greater the ductility, the better the plasticity of the asphalt. [0003] In the prior art, the Chinese utility model patent with the authorized notification number CN205580894U discloses an asphalt ductility meter, which includes a controller, a water tank, a ...

AI Technical Summary

Problems solved by technology

Although this temperature control device for the asphalt ductility meter can adjust the temperature inside the ductility meter, the heating time of the water in the water tank is lengthy and there will be yin and yang water phenomenon. The heater is set at the bottom of the water tank. When heating When the device heats the water, the water in the lower part is easy to meet the test temperature requirements, but the water temperature in the upper part is difficult to ensure the temperature required for the test, that is, the phenomenon of yin and yang water in the upper part is cool and the lower part is hot, which affects the test results

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